2mxu

42-Residue Beta Amyloid Fibril

Method: SOLID-STATE NMR Dmax: 71.3 Å Quality: EXCELLENT

1. Protein Identity and Related Structures Protein Identity & Related Structures

Amyloid beta A4 protein

OrganismNot specified

UniProt P05067

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain A; UniProt 672–713 Chain B; UniProt 672–713 Chain C; UniProt 672–713 Chain D; UniProt 672–713 Chain E; UniProt 672–713 Chain F; UniProt 672–713 Chain G; UniProt 672–713 Chain H; UniProt 672–713 Chain I; UniProt 672–713 Chain J; UniProt 672–713 Chain K; UniProt 672–713 Chain L; UniProt 672–713 Fragment:UNP residues 672-713 No other associated polymer SOLID-STATE NMR NMR measurement conditions:pH 7.4;283 K;Pressure ambient NMR sample composition:50 uM [U-100% 13C; U-100% 15N] AB42, 10 mM sodium phosphate, 100% H2O | 100% H2O Resolution not provided

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

211 other PDB entries and 282 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A4_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–42; UniProt 672–713 Author chain B; PDBConstruct 1–42; UniProt 672–713 Author chain C; PDBConstruct 1–42; UniProt 672–713 Author chain D; PDBConstruct 1–42; UniProt 672–713 Author chain E; PDBConstruct 1–42; UniProt 672–713 Author chain F; PDBConstruct 1–42; UniProt 672–713 Author chain G; PDBConstruct 1–42; UniProt 672–713 Author chain H; PDBConstruct 1–42; UniProt 672–713 Author chain I; PDBConstruct 1–42; UniProt 672–713 Author chain J; PDBConstruct 1–42; UniProt 672–713 Author chain K; PDBConstruct 1–42; UniProt 672–713 Author chain L; PDBConstruct 1–42; UniProt 672–713

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 2mxu

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2mxu
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2mxu
Deposition date deposition_date2015-01-14
Structure title title42-Residue Beta Amyloid Fibril
Keywords keywordsAmyloid Fibril, Amyloid beta, Protein Fibril; PROTEIN FIBRIL
Experimental Method methodSOLID-STATE NMR

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier22.66
Radius of gyration Rg (electron density) rg_electron22.08
Forward intensity I(0) i01972250000.00
Molecular weight molecular_weight400190.0 kDa
Excluded volume excluded_volume511100 ų
Envelope volume envelope_volume92919 ų
Hydration-shell volume shell_volume31048 ų
Envelope diameter envelope_diameter78.8
Shell Rg shell_rg32.68
Envelope Rg envelope_rg24.70
Shape Rg shape_rg22.08
Total Rg total_rg22.32
Total atoms total_atoms57120
Residues n_residues3840
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax71.3
Rg (real space) rg_real22.60
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real1.9720e+09
I(0) uncertainty (real space) i0_real_error2.4850e+07
Rg (reciprocal space) rg_reciprocal22.61
I(0) (reciprocal space) i0_reciprocal1972000000.0000
Solution quality estimate total_estimate0.9077
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary28.1
Skewness Skewness skewness0.228
Kurtosis Kurtosis kurtosis-0.452
Angular range angular_range— – 0.3500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3047000.0000
Real-space data points n_real_points67
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.933; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.996

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)